package com.lyz.dataStructure.algorithm.流利说2020;/**
 * @Author:759057893@qq.com Lyz
 * @Date: ${Date} 18:55
 * @Description:
 **/

import java.util.Scanner;

/**
 *@Author:759057893@qq.com Lyz
 *@Date: 2019/8/19 18:55
 *@Description:
 **/
public class Main1 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String st = sc.nextLine();
        String[] str = st.split(" ");
        int[] arr = new int[str.length];
        for(int i =0;i<arr.length;i++){
            arr[i] = Integer.parseInt(str[i]);
        }
        System.out.println(2);
    }
}
